Primary 2node rac, standby stand alone physical?

is it possible to have 2 node rac as primary and stand alone db as physical standby ?
is yes how do i configure standby redo log on primary and stand by ? do I add standby redo log group for both threads on primary ?
and only for one thread in standby ?
v11.2
linux 5.4
EE

Yes this is possible.
See here:
MAA 10g Setup Guide: Creating a Single Instance Physical Standby Database for a RAC Primary Database
http://www.oracle.com/technetwork/database/features/availability/maa-wp-10g-racprimarysingleinstance-131970.pdf
Sebastian

Similar Messages

# of threads required between RAC Primary and RAC Standby

Oracle 11.1.0.7
Primary 3 Node RAC
Standby 2 Node RAC
Our primary (3 nodes) has 4 groups on each node, with the thread# relating to the instance number. For example, we have thread 1, 2, 3 each with 4 multiplexed groups.
Our standby was created with RMAN Duplicate and it also has 3 threads, but there are only 2 nodes.
The purpose of this Data Guard implementation is to migrate our development and acceptance environments to another data center with different hardware.
The new site has been running well and we started migrating development, where we did a switchover to the new environment; our standby databases are now our primary databases. We are going to keep the Data Guard implementation for awhile just to be sure all of the developers and applications are good.
I was going to drop the 3rd thread from the new primary (old standby) because there are only 2 nodes. I can take it down to 2 groups and then receive the error:
ORA-01567: dropping log 9 would leave less than 2 log files for instance play3 (thread 3)
ORA-00312: online log 9 thread 3: '+ASM_FRA_DA/dgplay/onlinelog/group_9.28331.811864225'
This group’s status is:
THREAD# GROUP# MEMBER SEQ STATUS
3 5 +ASM_FRA_DA/dgplay/onlinelog/group_5.8108.813676681             0 UNUSED
6 +ASM_FRA_DA/dgplay/onlinelog/group_6.8109.813676687             0 UNUSED
9 +ASM_FRA_DA/dgplay/onlinelog/group_9.28331.811864225            0 UNUSED
22 +ASM_FRA_DA/dgplay/onlinelog/group_22.18321.811184283           0 UNUSED
Plans are to un-Data Guard these environments to decommission the hardware. At that time I’m sure I can remove thread# because it’s not needed.
My question has to do with the logs needed between primary and standby. What I’m seeing is that the greatest number of threads are needed on each side, but not quite sure why if they are UNUSED. Can anyone elaborate on this? I can find no documentation that talks about this.
Sherrie

Hi,
You could do:
ALTER DATABASE DISABLE THREAD 3;
check status of the groups in the thread, if any of them <> UNUSED, then archive them:
ALTER SYSTEM ARCHIVE LOG GROUP x;
Then drop the groups.
My question has to do with the logs needed between primary and standby. What I’m seeing is that the greatest number of threads are needed on each side, but not quite sure why if they are UNUSED. Can anyone elaborate on this? I can find no documentation that talks about this. Actually a RAC standby can work with just 1 instance started, because the MRP process runs only on 1 instance. Opening the standby is another story.
But of course you should have enough standby redo logs on the standby site to receive redo from the primary site.

Cascading physical standby from another physical standby for primary rac

my supplier told me that is possible mount a cascade physical standby from a physical standby for my rac installation.
but according the note "409013.1" seems not:
"Cascading a logical or physical standby database from a physical standby database is supported as long as the primary database is not a RAC database and is not part of a Data Guard Broker configuration - the support status of this configuration is unchanged from previous documentation."
before was possible? do you know why not now?
has anyone mounted? can I allow my provider to mount?
oracle version: 10.2.0.2.0

Is it possible this scenario?YES

How to create a physical RAC standby from a RAC primary on Std Edition 11g

Hi All,
I need to create a physical RAC standby with ASM (2 nodes - Linux) from a RAC primary(2 nodes - linux) with Standard Edition 11g. But I don´t want to use dataguard.
I know that to use dataguard is possible only Enterprise Edition.
Does anybody knows about any documents ID on metalink or any article about this ?
I appreciate if may help me.
Thanks.
Wander(Brazil)

Wander(Brazil) wrote:
Ok, but i need to RAC physical standby with 2 nodes.Yes you can create standby RAC as well and you also can look option of dbvisit which provides high availability even in standard edition with low licensing prices
in detail you can go through with this link http://www.dbvisit.com/products/dbvisit_standby_database_for_oracle_disaster_recovery
>
Wander(Brazil)
     Newbie
Handle:      Wander(Brazil)
Status Level:      Newbie
Registered:      Sep 23, 2005
Total Posts:      116
Total Questions:      21 (20 unresolved)
Name      Wander(BH-Brazil)
Location      BH (Brazil)
Occupation      Database Administrator
>
Please consider closing your old thread as answered.
Edited by: CKPT on May 21, 2013 10:11 AM

Primary in standalone , Standby in RAC

What a preposterous Idea. I know.... This is not for production .
I have created standalone Primary to standalone Standby succesfully in the past.
At work I've been asked to create a 2-node standby DB for our 2-node RAC DB using RMAN Duplicate. I am planning to test this on my Laptop first. But my Laptop has only 8gb RAM. Using VM Ware workstation 8, I am planning to create
Primary : A standalone DB
Using RMAN Duplicate, I'll be creating
Standby : A 2-node RACSince Primary is standalone and has only 1 thread and standby DB in RAC having 2 threads, I am not sure if this will work. Ever heard of anyone creating a setup like this.
DB version :11.2.0.2
Guest OS : Solaris 10 (August 2011 Release )
Host OS : Windows 7
Using VM Ware workstation 8

Earlier ihad the same doubt.
Larry carpenter & me had a discussion on this, I can remember that. Read below post.
primary stand alone - standby 2 node physical rac?
Close the thread if answered and keep the forum clean.

Static listener registration 11gr2 RAC Primary and standalone Standby

Hi Guys,
I have to build up a single instance Physical Standby(Dataguard) for a primary RAC (11.2.0.1).The concern or rather confusion we have three SCAN LISTENERS across 2 node cluster,in order for me to have static registration for duplication of database for standby i need to have it put in the listener.ora .
Do i have to create the static listeners for default listener as well as the scan listeners?

My understanding is No.
The Oracle instance would automatically register the local listener to SCAN listeners, so I believe just the default needs this.
This document has Scan listener example and none of them use a _DGMGRL
http://www.oracle.com/technetwork/database/features/availability/maa-wp-11g-rac-standby-133152.pdf
Best Regards
mseberg
This document seems to support my statement :
11.2 Scan and Node TNS Listener Setup Examples [ID 1070607.1]
Edited by: mseberg on Aug 5, 2011 2:02 PM
Also of interest :
11gR2 Grid Infrastructure Single Client Access Name (SCAN) Explained [ID 887522.1]

Can I use data guard to create a RAC standby database for a non RAC primary

Hi,
we need to RAC our production database but the normal methods will mean a long outage. It is possible to create a standby as a single node RAC database and when ready do a graceful failover to the standby database and open it for business. The next step would be to create another RAC node from this on the original server.
servers are already cluster aware, using ASM etc
Oracle 10.2

Yes, you will be able to setup RAC stnadby for a non-RAC Primary. For primary it just needs a available destination for redo shipping it doesn't matter whether it's RAC enabled or not. And ofcourse you are using 10.2 anyway only one node will be running MRP and that is too in standby mount mode.
However since you have are using You may follow below sequence.
1. Setup a new standby as RAC enabled.
2. Perform a switchover.
3. Shutdown the Old primary (which is standby now).
4. Install CRS and RDBMS on the old primary and it's new node.
5. Modify the cluster_database=TRUE and cluster_database_instances=<required number of instances>.
With above modification mount the standby database in standby mode and start MRP.
6. Introduce the database and instances to the OCR using SRVCTL add command.
7. Once you your database is synchronized with Primary do a switchover.
9. Now you can repeat step 3 to 6 on the other site too. <- if you need your secondary site to be RAC enabled too
10. Finally both the sites should be RAC enabled.
Hope this is helpful!!!
Thanks,
Asif Haliyal

Install "use typical installation options for a stand-alone primary site" All SQL Prerequisites Failed. Checks SQL before SQL is even installed?

So I select the install option to "Use typical installation options for a stand-alone primary site" which says it includes installation of SQL 2012 SP1 on the local server.
But then during the prerequisite checks it fails every SQL check.
Is it just me or a giant catch 22? Am I missing something here? How is this over looked if it is what it looks like? Why even have this simple install option if it can't work?

Take a look at my R2 install guide. This is for a stand alone primary. As Torsten states you pretty much need SQL installed and configured correctly prior to running the ConfigMgr install - along with a few other pre-reqs.
https://sccmentor.wordpress.com/2014/01/08/sccm-2012-r2-step-by-step-installation-guide/
Cheers
Paul | sccmentor.wordpress.com

How to add a stand alone table from Physical layer to Business Model

Hi,
I have tables from 2 different database sources in my Physical Layer.
My Business model currently uses only tables from one database. from my second database in teh physical layer I need only one table and that will be a stand alone table, to my Presentation layer.
1. Does it have to go through my Business layer or can it be directly added to the Presentation layer. What are the steps?
2. Can I restrict the permissions on that stand alone table only to the administrator?
Thank you.

1)create a view with single column using the sql (select 1 from dual) in physical layer and join it with the table using complex join in physical layer (1=1).
Move that to BMM, set the column as key in both physical and bmm layer.
2) You can restrict the access for the table presentation layer
Double click the presentation layer table -> Permission -> there you can restrict the access by user or group
Thanks,
Vino

Data guard setup for 2 node RAC primary to 2 node RAC standby

Hi All,
I am going to setup data guard for 2 node RAC primary to 2 node RAC standby on Oracle 10.2.0.4. in AIX5L.
Can you please provide the document on the above setup which is having all the steps (details).
Also, the documents on different scenarios like
1) If one node of standby goes down, how the redo logs will be applied. IS there any problem?
2) If both nodes of standby are failed, how to reciver them?
3) If one node of primary fails, is there any issue?
4) If two nodes of primary fails, is there any issue?
Thanks in advance,
Mahi

Have a look at the following location, you may find some similar documents:
http://www.oracle.com/technology/deploy/availability/htdocs/maa.htm
By
http://www.oraxperts.com

SCCM 2012 R2 Stand Alone Primary

Hello,
Our current environment has 2 stand alone primary, is adding a CAS and joining the 2 primary something feasible and supported?
Thanks

Hello,
Our current environment has 2 stand alone primary, is adding a CAS and joining the 2 primary something feasible and supported?
Thanks
Well just found out the answer
Beginning with System Center 2012 Configuration Manager SP1, you can install a new central administration site as a parent site of an existing stand-alone primary site. This expands your stand-alone primary site into a larger hierarchy that
supports the install of additional new primary sites. You can expand only one pre-existing primary site into the new hierarchy because the database of the new central administration site is based on the database of your stand-alone primary site. After this
new central administration site installs, you cannot join or expand additional pre-existing primary sites to this same hierarchy. However, you can install new primary sites as child sites below the central administration site.

SSH issue when converting stand alone to RAC -- manually

Hi All,
I face an issue with SSH when trying to convert a stand alone database to RAC (2 node). I am trying the manual way.
Plan:
Migrate the filesystem to ASM
Install the cluster
Create another ASM instance on node 2
Create another DB instance on node 2
Register the new ASM and DB instance with cluster manually
I have successfully completed the filesystem conversion to ASM.
When performing the pre requisites for cluster installation, i am facing problem when configuring the SSH.
Node 1 -- Has the existing stand alone database
Unable to do SSH from node 1 to node 1 (self) or from node 2 to node 1.
However i am able to SSH from node 2 to node 1 and node 2 to node 2 (self)
Steps which i tried already:
1)Created another user(test) on both the nodes and try to establish SSH to see if configuration problem is with this current user (RAC1). SSH configured successfully with user test
2)Copied the profile of RAC 1 user on node 2 to node 1 and retried the SSH configuration. But it failed
3)Dropped the user RAC1 on node 1, deleted all the hidden files in home directory so that they can be created freshly when the user (RAC1) is recreated. Tried SSH configuration again and it failed
Can you please help me to fix this issue and identify the root cause of this.
Please let me know if you have any questions.

user 777111 wrote:
I face an issue with SSH when trying to convert a stand alone database to RAC (2 node). I am trying the manual way.What operating system?
To create automated ssh connectivity between 2 accounts (same platform, or different platforms, does not matter):
1. generate a ssh key for the current account (command: <i>ssh-keygen -t rsa</i>)
2. create the file +$HOME/.ssh/authorized_keys+ and copy all the RSA public keys from all accounts that are trusted (this includes the current account's public key) - public key file is +$HOME/.ssh/id_rdsa.pub+
3. manually test connectivity from the trusted account to the other accounts - as the signatures of those servers need to be accepted and stored in +$HOME/.ssh/known_hosts+
When setting this up for RAC, you first need to generate the RSA keys and then do the above on one node. Create +$HOME/.ssh/authorized_keys+ containing all RSA public keys. Build +$HOME/.ssh/known_hosts+ by ssh'ing from that node to the other nodes (do not need a successful logon - only need to accept servers signatures).
When done, copy both these files to the +$HOME/.ssh+ directory on all other RAC nodes.

Expand a Stand-Alone Primary Site into a Hierarchy with a Central Administration Site

I have a stand alone SCCM server in my Lab. Now I need to install a CAS and add the stand alone SCCM site to the hierarchy.
As I have searched on Google the steps are quite simpler I have followed the below link for doing the same.
http://technet.microsoft.com/en-us/library/jj591551.aspx
http://www.scconfigmgr.com/2013/05/03/install-a-configmgr-2012-sp1-central-administration-site/
But when i click on install, the installation failed at this particular step:-
In the log file below is the error I received:-
I am only using a single Domain account throughout the environment and SQL and SCCM has been installed with the very same account.
Stand alone site has been installed on the default SQL instance and I have created a named instance "CAS" for CAS installation on the very same SQL Server. The domain account has sufficient rights on the SQL and the Machine accounts have the local
admin privileges both for CAS and stand alone and also on SQL.
Gaurav Ranjan

Hi，
Have you disabled the firewall?
You could create a UDL file to test connectivity between machines (See
http://msdn.microsoft.com/en-us/library/e38h511e(v=VS.71).aspx for more information)
We
are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
Thanks for helping make community forums a great place.

Switchover 2-node primary 1-node standby

Hi,
Primary database has 2 node RAC, &
standby database has only 1 node - stand alone.
then switchover procedure is normal as 1 to 1 ? or any changes in performing switchover.
Do i need to make the cluster database as single node by setting cluster_database=false?
Please advice.

hi,
please see the documentation: http://download.oracle.com/docs/cd/E11882_01/server.112/e17022/rac_support.htm#i641732
before switchover to a physical standby, all but one primary instances should be stopped; after switchover, started again.
but no need to modify any parameter.

RAC Standby Database rebuild

Hi
Current 10.2.0.4 Setup is with Dataguard Broker (Unix/No OEM Setup):
Rac Primary 2node cluster
Rac Standby 2node cluster
The rac Standby Database are going to be opened read/write.
Then will require a rebuild of standby ie delete db files and duplicate db using rman
1) My questions is how do I rebuild of a rac standby database with an existing enabled dg broker?
2) Are there any documentation on the steps to follow.
3) Should the dg broker config be dropped or just disabled and if so at which stage?
Config on Rac primary should be kept to a minimum as its being used so no outage expected here.
Regards
Me

Have you given any thought to using flashback (depending on how long your standby will be open for read/write)? You could (before you open read/write) copy your dr*.dat files (broker config files), stop the broker and create a guarenteed restore point. After you have finished and ready to convert back to standby you would flashback your database to the restore point, convert back to a physical standby, restart the broker and shutdown. Restore the dr*.dat files to their location and then startup the standby. From there it should fetch the logs from the time the broker was down and catch back up.
If you would rather rebuild, again you would need to take the broker out of the equation and use RMAN to create a clone for standby and then once in place you would reconfigure the broker (may be able to just restore the dr*.dat files from before the open operation but unsure.

Primary 2node rac, standby stand alone physical?

Similar Messages

Maybe you are looking for